在某输电线路工程现场用导线发生大面积腐蚀，腐蚀产物为白色胶状细颗粒。采用理化分析、试验模拟等方法对腐蚀产物及导线接触物进行分析，并探究腐蚀机理。结果表明：Cl是导致导线腐蚀的主要元素，导线中弥散分布的第二相粒子加速了腐蚀进程。据此，提出了导线在加工制造、运输存贮及使用过程中避免腐蚀的方法。

Serious corrosion of wires used in a transmission project appeared. The corrosion product was white colloidal fine particles. The composition of corrosion products and mechanism of corrosion were explored by means of physical and chemical analysis and simulation test. The results show that Cl was the main element leading to the corrosion of the wire, and the second phase particles dispersed in the wire accelerated the corrosion process. Accordingly, some suggestions for avoiding the wire corrosion in the process of manufacture, transport and use were proposed.